Malicious PDF — malware analysis report

Static analysis result for SHA-256 952f9398872577fa…

MALICIOUS

PDF

80.0 KB Created: 2020-11-13 19:05:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 25274195451986a965099a28a329c8de SHA-1: c5458d99a4eef078a97a72b0ce703d88da759303 SHA-256: 952f9398872577fa93c26150ffe92ad2c3cb64a61b54dc169c42c6b4665d7d68
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external links, with one heuristic specifically identifying it as a 'PDF_SEO_LINK_FARM'. The presence of an external URI pointing to 'traffking.ru' suggests a malicious intent to redirect users. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a likely phishing or malicious redirection attempt, aligning with Spearphishing Attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8947

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://traffking.ru/strik?utm_term=enchantress+among+alchemists
    • https://cdn-cms.f-static.net/uploads/4375206/normal_5f9b4600e2cf7.pdf
    • https://cdn-cms.f-static.net/uploads/4371014/normal_5f90897352619.pdf
    • https://ponixojezunuto.weebly.com/uploads/1/3/0/9/130969897/6509905.pdf
    • https://cdn-cms.f-static.net/uploads/4411218/normal_5f9de5fbd8e34.pdf
    • https://cdn-cms.f-static.net/uploads/4384463/normal_5f918050af04d.pdf
    • https://cdn-cms.f-static.net/uploads/4418184/normal_5fa6ca119d48c.pdf
    • https://cdn-cms.f-static.net/uploads/4369522/normal_5f8f150159f2f.pdf
    • https://cdn-cms.f-static.net/uploads/4449777/normal_5fa977e505c80.pdf
    • https://cdn-cms.f-static.net/uploads/4416318/normal_5fa99514e3d4c.pdf
    • https://s3.amazonaws.com/gebaxovudofe/will_wood_and_the_tapeworms_selfish.pdf
    • https://uploads.strikinglycdn.com/files/549397a5-4f28-4e81-80cf-5b0394a4cd38/munoninifejaziteroxul.pdf
    • https://s3.amazonaws.com/debiwelof/what_are_google_ads_conversions.pdf
    • https://uploads.strikinglycdn.com/files/e4134a01-bbf7-4abf-a3b1-48cd4898f6b4/viravowoni.pdf

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